Stenciling-machine.



J. SOKOLOV.

STENQILING MACHINE. APPLICATION FILED JUNE 2s. 1912.

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J.SOKOLOV.

Patented 0G13. 14, 1913.

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APPLICATION FILED JUNE 28,1912. 1,075,735.

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JACOB SOKOLOV, OlF NEW YORK, N. Y., ASSIGNOR TO UNDEBWOOD TYPEWRITEB COMPANY, 0F NEW YORK, N. Y., A CORPORATION 0F DELAWARE.

STENCILING-MACHINE.

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Patented Oct. 14,1913.

Application tiled June 28. 1912. Serial No. 706,334.

T o all 'whom t may concern.'

Be it known that I, JACOB SoKoLov, a citizen of the United States, residing in the borough of Brooklyn, New York city, in the county of Kings and State of New York, have invented certainnew and useful Improvements in Stenciling-Machines, of which the following is a specification.

This invention relates to stenciling machines, more particularly to machines of this character which are provided with means for handling the freshly stenciled sheets or copies, so as to prevent their smudging or offsetting.

ln the usual type of stencilingor duplicating machine, the stencil is mounted upon a perforated cylinder to the interior of v which is applied a heavy ink which flows through the cylinder perforations and through the characterperforations of the stencil onto the copy as the latter is pressed against the cylinder and fed past the same. To prevent the smudging or offsetting of the copies after receiving the impression from the stencil, it has been proposed to yprovide a movable web or ribbon of material upon which the copies are to fall as they are discharged from the stencil cylinder. The web and copies are then to be rolled together upon a reel, thus drying the copies out of contact with oneanother, after which the reel is reversed so as to discharge the dry copies from the machine.

Uien discharging the dried copies, the ink from the stencil cylinder is apt to drop and smear the copies or the drying web. Particles of dust or grease are also liable to fall down upon the table and soil the copies. A plan has been proposed whereby the reels are shifted so as to turn theminto reverse positions, whereby the movement of the web discharges the sheets awayrfrom the stencil cylinder. With this construction it is also necessary to disconnect the driving mechanism which drives the reel from the stencil overcome the ditliculties above stated, and

to this end I; gear the reel directly to the stencil cvlinder, 'and for adjusting the apparatus for discharging the dryA sheets, I

shift the web from a position below the reel, j

wherein it feeds the copies to be rolled upon the reel, to a position above the reel. In the latter position, reverse rotation of the reel and web causes the sheets to be discharged over the reel free from the machine without passing back to the stencil cylinder.' To prevent the cylinder from rotating the reel backward when the former is moved back, aswhen it overruns "its position as determined by the stop, I provide a ratchet clutch in the train of gears connecting the stencil cylinder with the reel. This clutch may be entirely thrown out of operation when the rotation of the reel is reversed for the purpose of discharging the dry copies therefrom. Both of these adjustments are very simple and easy to make and require very little time, and thus the dry sheets. can be quickly discharged from the machine in a position Where all smudging or ksoiling of the sheets is avoided. l

@ther objects and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is an elevation of my improved stenciling machine. Fig. 2 is a plan thereof partly in section. Fig. 3 is a section taken along lines 3 3 of Fig. 2. Fig. 4 is a sectional elevation illustrating the position of parts when adjusted for discharging the dry sheets. Fig; 5 is a. detail view illustrating the gear and lpin in driving engagement with the gudgeon on the reel. Fig. 6 is a detail view illustrating the gear and pin in a position of disengagement with the gudgeon. Fig. 7 is a fragmentary detail view illustrating the hub of the gear wheel with the aperture for receiving the projection on the fingerpiece. Fig. 8 is a sectional detail view illustrating the ratchet clutch in inoperative position. Fig. 9 is a perspective detail view illustrating the spool with the end plate detached.

The sheets 1 are fed to the stencil cylinder 2 from table 3 and receive the impression of the stencil to which they are pressed by they pressure roll 4. The stencil cylinder is rotated b means of a handle 5 in the diection of t earrow shown in Fig. 1; and the sheets are discharged upon a web or which are rolled the web with the stenciled sheets or copies carried thereon.

1When the web on the spool has been en` tirely rolled on the reel, or at any other time when it is desired to discharge the sheets which have been dried on the reel by reason of their contact with the absorbent web, the mechanism for driving the reel from the stencil cylinder is thrown out of operation and the reel is rotated in the reverse/direction so as to discharge the sheets free from the machine. This is accom- -plished as follows: Pivoted coaxially with the reel 8 are a pair of arms 9 carrying a roll 10 beneath the web. These arms have an extension 11 on the opposite side of their pivots 'and one of these is formed with an aperture 12 into' which is projected by a spring 13 a detent 14 mounted in a suitable housing 15 on the frame. The arms may be adjusted so as to lift the web to a position above the reel, in which position the arms are held by the detent. The spool 7 is then rotated by a handle 16 in the direction of the arrow shown in Fig. 4so as to wind the web thereon. This web accordingly unwinds from the reel Sgand by reason of the arrangement of the webabove the reel the sheets are discharged over the latter free from the machine.

Pressure is applied to the Web, as it is rolled on the reel together with the sheets, by means of a pressure roll 17 mounted on a pair of arms 18 lixed to a shaft 19 journaled in the frame. Shaft 19 has fixed thereto adjacent its lends a pair of arms 20 which are held yieldingly inward by means of springs 21 attached yat one end to pins v 22 carried by the arms and at the other end to pins 23 fixed to the frame. y

To drive the reel from the stencil cylinder thelatter has connected thereto a bevel gear 24 meshing with a bevel pinion 25 coupledto one end of shaft 26. The latter has adjacent to its other end a muf'27 fixed thereto extending loosely over a sleeve v 28 fixedfto a stub shaft 29 journaled in a bracket 29a and having a bevelginion 30 fixed thereto. Slidably mounte within the maf? is asleeve 31 having ratchet teeth 32 adapted to engage ratchet vteeth 33 on sleeve 28 to which it'is impelled by a spring 34 'carried in the muti'. A pin 35Aformed with a finger knob projects from sleeve 31 through a lslot 36 which extends longitudinelly of the shaft. When the stencil cyl-` inder is rotated in the direction to feed a sheet out, the ratchet teeth of the sleeve 31 engage the teeth of sleeve 28 to rotate the same, which in turn transmit-s the motion' to the reel 8. TNhen the stencil cylinder is rotated in the opposite direction, the/teeth on sleeve 31 slip past t-heteeth onlsleeve 28 and said sleeve 31 slides back and 'forth. on the shaft, and the pin 35 works back and forth in the slot 36.

To render the clutch inoperative, the pin is grasped and pulled inward until. it is brought in the transverse portion 37 of slot 36. ,ln this position tlie pin holds the sleeve 31 in inoperative position against the tension of the spring. The pinion 30 meshes with a bevel gear 38 having a sleeve 39 journaled in the frame in axial alinement with the open bearing 40 which `carries one of the gudgeons 41 extending from the reel 8. A .pin or plunger 42 slides in an axial bore in said bevel`gear 33 and is impelled by a spring 43 inwardly to seat in a recess 44 in the gudo'eon 41.- A key 45 is attachedto the .pin andD slides in a slot 46 in the hub ofthe gear and is adapted to be slid into the slot 47 in the gudgeon 41 when the pin 42 seats the reel. The pin may beheld out of enfinger piece 4S, which is rotatably mounted on the end of the pin, and pulling the pin until the stop 49 is pulled mit from the aperture 50 in the hub of the gear wheel, and then rotating the finderipiece until the 'stop engages the outer ace of the hub. The

41 mounted in the openfbearing 40%v This pin or plunger 42a. Then the pins are retracted outward the reel is free to be lifted off from the open bearings. The spool 7 also has gudgeons 51 and 51a extending therefrom at its ends which are mounted in open bearings 52 and 52a. Pins 53 and 53a are slidably mounted in the frame axially of therein. The pin 53B has attached thereto in the lgudgeon 51a. The spool is thus held in position in its bearings and has the handle 16 coupled thereto. When the pins are retracted, the spool may be lifted ofi` its bearings similarly to the reels. All of the pins engaging thefgudgeons may if desired ,be supplied with finger pieces 48B and stops vsimilar to the finger piece 48, and stop 49 for the pin 42. These stops may seat in recesses similar to the aperture 50 illustrated in Fig. 7.- Allv ofthe pins may thus be held out of engagement while the reel and spool are being ,lifted off their bearings.

As illust-rated in Figs.` 2 and 94 the spool gagement with the gudgeon by grasping thel outward against the tension of the spring` opposite end of the reel 8 also has a gudgeonl gudgeon has a recess 44a in which seats al said gudgeons and seat in recesses formed the handle 16 and has also a projection ord key which registers with slot 56 formed in the recess 44, thus coupling the gear to nove/zee or reel consists of'shaft 57 having-at one A end a plate58`attached thereto having a cylindrical flange 59* extending inwardly therefrom. At the otherend'theshat is formed with a collar G0, havinga headed pin orscrew 61 on its side tace'. An end plate 69.-" having an inwardly extending flange 63 and a central aperture 64 is mount-l ed on the gudgeon at the end ofthe shaft against the collar. A slot 65is formed in the plate having an enlarged portion" 66 throughy which the head vof the pin may pass. Vhen the end plate 62 is inserted onthe gnd'geonA and rotated, it'is locked in fpo'sition'upon the shaft by the screw 61. The spool orE reel may thus'be assembled or detached for re'- plaeing the web ot absorbent material.

As above stated thc spool and reel are 'of substantiallysimilar construction, the disf tinguishing terms being adoptedl for the sake of clearness in referring to these members.

Variations may be resorted to within the' scope of the invention, and portions'ot theimprovements may be used without others.

Having thus described my invention, I claim:

1. In a stenciling machine, a stencil cylinder, a spool mounted adjacent thereto, said spool carrying a ribbon or web ot'absorbentmaterial upon which the stenciled sheets fall, a' reel for rolling thereon thelv web together with the stenciled sheets, and means fork laterally shifting the web with reference to said spool and reel whereby reverse rotation of the spool discharges the stenciled sheets from the reel.

2. In a stenciling machine, a stencil cylinder, a spool mounted adjacent thereto, said spool carrying a ribbon or web of absorbent material upon which the stenciled sheets fall, a reel for rolling thereon the web together with the stenciled sheets, and an arm ior lifting the web whereby reverse rotation of the spool discharges the stenciled sheets from the reel.

3. In a stenciling machine, a stencil cylinder, a spool mounted adjacent thereto, said spool. carrying a ribbon or web of absorbent material upon which Y the stenciled sheets fall, a reel for rolling thereon a web together with the stenciled sheets, an adjustable arm for lifting the web whereby reverse rotation of the spool discharges the stenciled sheets' from the rcel, and means for holding the arm in adjusted position.

il. Ina stenciling machine, a stencil cylinder, a spool mounted adjacent thereto, said spool carrying a ribbon or web of absorbent material upon which the stenciled sheets fall, areel rotated from the cylinder for rolling thereon the web together with the stenciled sheets, means for uncoupling said rotating means, and means for laterally shitting the web with reference to said spool and reel whereby reverse rotation of the spool'dischargesthe stenciled sheets from thereel 5. In a'stencilingmael1ine, a stencil cylinder, a-spool mounted' adjacent thereto, said spool carrying a ribbon or web of absorbent material upon wlnch the stenciled sheets fall, a reel rotated from the cylinder for rolling theronthe web together with the stenciledsheets, meanstor uncoupling said rotating means, and an arm for lifting the web whereby reverse rotation ot' the spool'discharges the stenciled sheets from` the'reel.

6'. In a stenciling machine, a stencil cylinder, a spool mounted'adjacent'thereto, said spool carrying 'a 'ribbon or webv of absorbent material upon whichr` the stenciled sheets fall, a reel rotated from tle cylinder for rolling thereon the web together with the stenciled sheets, means for uncoupling-said rotating means, an adjustable arm for lifting the web whereby reverse' rotationof the vspool discharges the stencil-edsheets trom the" reel,i and'means for holding the arm in adjusted position. i

7. In a `stenciling machine, a stencil cylinder, a spool mounted adjacent thereto, saidsp'ool carrying a ribbon or web of absorbent material upon which the stenciled sheets'tall, areel for rolling thereon the web togetherl with the stenciled sheets, and an arm mounted coaxially with the reel for lifting the web whereby reverse rotation of the spool discharges the stenciled sheets from the reel.

8. In a stenciling machine, astencil cylinder, a spool mounted adjacent thereto, said spool carrying a ribbo-n or web of absorbent material upon wh'ich the stenciled sheets fall, a reel for rolling thereon the web together with the stenciled sheets, and a frame comprising a pair ot arms mounted coaXiall'y with said reel for lifting the web whereby reverse rotation of the spool discharges the stenciled sheets from the reel.

9. In a stenciling machine, a stencil cylinder, a spool mounted adjacent thereto, said spool carrying a ribbon or web ot absorbent material upon which the stenciled sheets fall, a reel for rolling thereon the web together with the stenciled sheets, means for applying pressure to the web upon the reel, and means for laterally shitting the web with reference to said spool and reel whereby reverse rotation of the spool discharges the stenciled sheets from the rcel.

10. In a stenciling machine, a stencil cylinder,f a -spool mounted adjacent thereto, said spool carrying a ribbon or' web of absorbent material upon which the stenciled sheets tall, a reel tor rolling thereon the web together with the stenciled sheets. a pair ot' arms carrying a roll adjacent to the reel, means engaging the arms for yieldingly holding the roll against the web on the reel to apply pressure thereto, and meansf for laterally shifting the web with reference to said spool and reel whereby reverse rotation of the spool discharges the stenciled sheets from the reel.

1l. In a stenciling machine, a. stencil cyl? `throwing said clutch "out of operative engagement.

12. In a stenciling machine, a stencil cylinder, a spool mounted adjacent thereto, said spool carrying a ribbon ,or web of absorbent material uponV which the stenciled sheets fall, a reel for rolling thereon the web together with the stenciledv sheets, a gear ,coupled to the stencilcylinder shaft, a gear coupled to the reel shaft, a transmitting shaft having gears thereon meshing with ,the above mentioned gears, a `one-Way clutch on the transmitting shaft comprising a mu lixed to the shaft, a sleeve having ratchet teeth slidable in said mu, a' toothed member attached to one of the gears on the' transmitting shaft, a handle on the sleeve projecting through a slot in the mu, and a spring for yieldlngly holding the sleeve in engagement with the toothed member.

13. The combination of a stencil cylinder, I a drying web arranged at the delivery sidek 14. The combination of a stencil cylinder,

a reel having a driving connection to said stencil cylinder, a web-carrying spool between said reel and lsaid cylinder, the web runningfrom the upper side of said spool to the lower side of said reel in position to receive the sheets from the stencilfcylinder, means for turning the spool to rewind the web thereon, and a Web guide shiftable to carry the web above the reel to cause .the dried sheets to discharge fromv the, top

thereof. f

\ JACOB SOKOLOV. Witnessesr- C. RIPLEY, F. E. ALEXANDER. 

